Ontario
Trail Running Calendar Ontario 2026-2027
Explore the best trail runs in Ontario for 2026-2027! Our updated list features 106 exciting trail runs across the region. Find your next trail run in Ontario below and join the trail community at these great events!
October 2026
A community-centered backyard ultra in Manotick Ontario featuring repeating loop racing plus 1 km and 5 km events and a community-oriented atmosphere.
Trail races in Thunder Bay on October 3 2026 with chip timing and distances of 50 km, 25 km, 10 km and a 2.5 km kids trail run.
A community event at Morrison Dam Conservation Area offering a 2 km walk or 5 km run to raise funds for Rural Response for Healthy Children.
Family and dog friendly run and walk at Harrison Park on October 3, 2026 supporting Grey Bruce Animal Shelter with two route options and fundraising.
Trail races around Parkhill Ontario on October 3, 2026 featuring singletrack at Mystery Falls and Joany’s Woods, multiple distances, shuttle service and a post-race beverage garden.
Brantford Cross Country Classic in Brantford, Ontario on October 3, 2026. Entry fee $25, MTA non member fee $5, online registration and course maps available.
Trail and ultra races at Warsaw Caves, distances from a 1 km kids run to a 50 km ultra, part of registration fees donated to CMHA.
Trail event at Pinehurst Lake featuring a 12.5K loop with 25K, 50K and 50K relay options, natural singletrack, aid stations, and a New Balance finisher backpack.
Trail running event in Thunder Bay with on-site cash registration, a $10 per person fee and a free Kids Mini Fun Run held afterward.
Looped trail race at Christie Lake using a 5.3 km circuit for multiple distances, cup-less aid stations, and fundraising support for Oceana Canada.
A family friendly trail run and walk on the Kawartha Rail Trail in Fenelon Falls, offering 1 km, 5 km and 10 km options and community-focused awards and services.
Run For Rowan at Ferguson Forest Centre in Kemptville on October 10, 2026 offers 2 km and 5 km events with set entry fees and a non-refundable policy.
A cross-country prep meet at Sunnybrook Park, Toronto on October 11, 2026, featuring 3 km and 5 km races plus a Rising Stars Finale for U8–U12, open to all.
Trail event at Walden Cross Country on October 11, 2026 with 8 km, 3.5 km and a 1 km kids run; proceeds support the Walden Nordic Race Team.
Community Turkey Trot in Cobourg with timed 5K and 2.5K, a 1K kids run, medals and awards supporting the YMCA Strong Communities Campaign.
A family-oriented Turkey Trot at Springbank Park on October 12, 2026 featuring 6.5K, 2K and a 200 m Kiddy Trot with race-day donations for the London Food Bank.
Obstacle-course weekend at Blue Mountain Ski Resort with 5K, 10K, 21K races and a Trifecta medal for completing all three on Oct 17-18, 2026.
Trail races at Fanshawe Conservation Area with 25K and 50K options, chip timing, aid stations every 5 km, and a post race meal.
Trail event at Long Sault Conservation Area offering 7K, 14K, 21K, a 6 hour looped race and a 2K kids run, with one aid station and limited parking.
Looped trail and gravel races on October 17, 2026, from 14K to 80K 50 Miler with aid stations and race swag.